Answer: the answer is c) $0.85
Step-by-step explanation:
if he has 3/20 of a dollar that calculates to $0.15 and $1.00 minus $0.15 equals $0.85
30% of number A means

similarly, 40% of number B means

These must be equal, so we have

Multiply both sides by 10 to get

So, you can choose any number for A, and then you multiply it by 4/3 to get B. There are infinitely many solutions to this equation.
Answer:
It's a right triangle.
Step-by-step explanation:
△ABC with m∠A=30° , m∠B=60° , and m∠C=90°
It's a right triangle.